243121233324 has 24 divisors (see below), whose sum is σ = 572899542768. Its totient is φ = 80238030400.

The previous prime is 243121233283. The next prime is 243121233331. The reversal of 243121233324 is 423332121342.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 243121233291 and 243121233300.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100296327 + ... + 100298750.

It is an arithmetic number, because the mean of its divisors is an integer number (23870814282).

Almost surely, 2^243121233324 is an apocalyptic number.

It is an amenable number.

243121233324 is an abundant number, since it is smaller than the sum of its proper divisors (329778309444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243121233324 is a wasteful number, since it uses less digits than its factorization.

243121233324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200595185 (or 200595183 counting only the distinct ones).

The product of its digits is 20736, while the sum is 30.

Adding to 243121233324 its reverse (423332121342), we get a palindrome (666453354666).

The spelling of 243121233324 in words is "two hundred forty-three billion, one hundred twenty-one million, two hundred thirty-three thousand, three hundred twenty-four".